CVE-2017-5549: linux linux_kernel
Vulnerability summary
CVE-2017-5549 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.1% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 4Timeline
- 06-02-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The klsi_105_get_line_state function in drivers/usb/serial/kl5kusb105.c in the Linux kernel before 4.9.5 places uninitialized heap-memory contents into a log entry upon a failure to read the line status, which allows local users to obtain sensitive information by reading the log.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
Increase +0.02 pp
From 0.43% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu12 products
- linux< 3.13.0-157.207 | < 4.4.0-63.84
- linux-aws< 4.4.0-1003.12
- linux-azure-fdeAll versions (No fix recorded)
- linux-gkeAll versions (No fix recorded)
- linux-hwe< 4.10.0-32.36~16.04.1
Debian1 product
- linux< 4.9.6-1
Linux1 product
- linux_kernel≤ 4.9.4
3 vendors · 14 products
References
16 links- www.openwall.com/lists/oss-security/2017/01/21/3Mailing ListX Refsource MLISTPatchThird Party Advisory
- github.com/torvalds/linux/commit/146cc8a17a3b4996f6805ee5c080e7101277c410X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
